Did 99% of Patients Have Major Risk Factors Before Their First Heart Attack or Stroke?

Synopsis
Key Takeaways
- 99 percent of patients had warning signs before heart events.
- High blood pressure is the most common risk factor.
- Over 93 percent had two or more risk factors.
- Women under 60 also showed significant risk factors.
- Managing modifiable risk factors is critical for prevention.
New Delhi, Sep 30 (NationPress) A significant study reveals that 99 percent of individuals experienced warning signs prior to their initial heart attack, stroke, or heart failure, challenging the belief that these serious health events occur without any prior indications.
Conducted by Northwestern Medicine in the US alongside Yonsei University in South Korea, this research highlights that individuals affected by these lethal cardiovascular diseases—responsible for a majority of global fatalities—had at least one risk factor exceeding the recommended levels prior to their medical events.
According to Dr. Philip Greenland, the study’s senior author and a cardiology professor at Northwestern University Feinberg School of Medicine, "This study convincingly demonstrates that nearly 100 percent of patients had exposure to one or more nonoptimal risk factors before experiencing cardiovascular incidents."
Dr. Greenland emphasized the importance of focusing on managing these modifiable risk factors instead of diverting attention to less treatable and non-causal factors.
The researchers identified four primary cardiovascular risk factors: blood pressure, cholesterol, blood sugar, and tobacco use.
Analyzing health records from over 9.3 million adults in Korea and nearly 7,000 in the US, the study followed participants for up to two decades.
The results, published in the Journal of the American College of Cardiology, indicated that more than 99 percent of those who developed coronary heart disease, heart failure, or stroke possessed at least one nonoptimal risk factor prior to their event, with over 93 percent having two or more risk factors.
High blood pressure, or hypertension, emerged as the most prevalent risk factor, affecting more than 95 percent of patients in South Korea and over 93 percent in the US.
Even among women below 60—a demographic typically considered at lower risk—over 95 percent exhibited at least one nonoptimal factor before suffering heart failure or stroke.
In a secondary analysis, the researchers examined clinically elevated risk factors based on higher diagnostic thresholds: blood pressure exceeding 140/90, cholesterol above 240, glucose above 126, and current smoking status.
In these circumstances, at least 90 percent of patients still had at least one significant risk factor prior to their first cardiac event.